tintheanh
Level 1 (4 points)
Mac OS X

Q: Cannot use 3-finger lookup in Preview mac OS Sierra

It was fine when I used it on previous OSX. But since I updated to mac OS Sierra, I couldn't use 3-finger lookup in Preview (other apps like Safari worked fine). Everytime I tried to use it in Preview, the app became frozen. Can anyone show me how to fix it? Thanks

MacBook Air (13-inch Mid 2013), macOS Sierra (10.12)

Posted on Oct 21, 2016 2:04 PM

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tintheanh

Q: Cannot use 3-finger lookup in Preview mac OS Sierra

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  • by VikingOSX,

    VikingOSX VikingOSX Oct 21, 2016 2:54 PM in response to tintheanh
    Level 7 (21,550 points)
    Mac OS X
    Oct 21, 2016 2:54 PM in response to tintheanh

    A macOS Sierra, three-finger tap word look up, and its control-command-D keyboard shortcut in Preview are inoperable. A working, third alternative, two-finger tap on a word with the pointer hovering over it will bring up a contextual menu with Look Up “word.”

     

    Checking the appropriate item in the Trackpad preferences, a Safe Boot, a removal of all user Library Caches content, and a normal reboot failed to restore the missing functionality when viewing a PDF in Preview.

     

    This is a bug that may, or may not be rectified in subsequent updates to macOS Sierra.